Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description partially carries the transparency burden. It discloses the comparison nature, pricing ($0.09 via x402), and output type ('spreads + verdict'), but omits details like data sources, update frequency, or how 'top' is determined. This is useful but not comprehensive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.